diff --git a/src/crypto/gui/signencryptemailconflictdialog.cpp b/src/crypto/gui/signencryptemailconflictdialog.cpp
index a91a27e14..1c6132d3f 100644
--- a/src/crypto/gui/signencryptemailconflictdialog.cpp
+++ b/src/crypto/gui/signencryptemailconflictdialog.cpp
@@ -1,649 +1,642 @@
 /* -*- mode: c++; c-basic-offset:4 -*-
     crypto/gui/signencryptemailconflictdialog.cpp
 
     This file is part of Kleopatra, the KDE keymanager
     SPDX-FileCopyrightText: 2009 Klarälvdalens Datakonsult AB
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #include <config-kleopatra.h>
 
 #include "signencryptemailconflictdialog.h"
 
 #include <crypto/sender.h>
 #include <crypto/recipient.h>
 
 #include "dialogs/certificateselectiondialog.h"
 #include "certificateselectionline.h"
 
 #include <Libkleo/GnuPG>
 #include "utils/gui-helper.h"
 #include "utils/kleo_assert.h"
 
 #include <Libkleo/Compliance>
 #include <Libkleo/Stl_Util>
 #include <Libkleo/Formatting>
 #include <Libkleo/SystemInfo>
 
 #include <gpgme++/key.h>
 
 #include <KMime/HeaderParsing>
 
 #include <KLocalizedString>
 #include <KColorScheme>
 
 #include <QLabel>
 #include <QLayout>
 #include <QGroupBox>
 #include <QDialogButtonBox>
 #include <QCheckBox>
 #include <QRadioButton>
 #include <QPushButton>
 #include <QPointer>
 #include <QSignalBlocker>
 #include <QToolButton>
 
 #include <algorithm>
 #include <iterator>
 
 using namespace Kleo;
 using namespace Kleo::Crypto;
 using namespace Kleo::Crypto::Gui;
 using namespace Kleo::Dialogs;
 using namespace GpgME;
 
 Q_DECLARE_METATYPE(GpgME::Key)
 Q_DECLARE_METATYPE(GpgME::UserID)
 
 static CertificateSelectionDialog *
 create_certificate_selection_dialog(QWidget *parent, Protocol proto)
 {
     auto const dlg = new CertificateSelectionDialog(parent);
     dlg->setOptions(proto == OpenPGP ? CertificateSelectionDialog::OpenPGPFormat :
                     proto == CMS     ? CertificateSelectionDialog::CMSFormat : CertificateSelectionDialog::AnyFormat);
     return dlg;
 }
 
 static CertificateSelectionDialog *
 create_encryption_certificate_selection_dialog(QWidget *parent, Protocol proto, const QString &mailbox)
 {
     CertificateSelectionDialog *const dlg = create_certificate_selection_dialog(parent, proto);
     dlg->setCustomLabelText(i18n("Please select an encryption certificate for recipient \"%1\"", mailbox));
     dlg->setOptions(CertificateSelectionDialog::SingleSelection |
                     CertificateSelectionDialog::EncryptOnly |
                     dlg->options());
     return dlg;
 }
 
 static CertificateSelectionDialog *
 create_signing_certificate_selection_dialog(QWidget *parent, Protocol proto, const QString &mailbox)
 {
     CertificateSelectionDialog *const dlg = create_certificate_selection_dialog(parent, proto);
     dlg->setCustomLabelText(i18n("Please select a signing certificate for sender \"%1\"", mailbox));
     dlg->setOptions(CertificateSelectionDialog::SingleSelection |
                     CertificateSelectionDialog::SignOnly |
                     CertificateSelectionDialog::SecretKeys |
                     dlg->options());
     return dlg;
 }
 
 static QString make_top_label_conflict_text(bool sign, bool enc)
 {
     return
         sign && enc ? i18n("Kleopatra cannot unambiguously determine matching certificates "
                            "for all recipients/senders of the message.\n"
                            "Please select the correct certificates for each recipient:") :
         sign        ? i18n("Kleopatra cannot unambiguously determine matching certificates "
                            "for the sender of the message.\n"
                            "Please select the correct certificates for the sender:") :
         enc         ? i18n("Kleopatra cannot unambiguously determine matching certificates "
                            "for all recipients of the message.\n"
                            "Please select the correct certificates for each recipient:") :
         /* else */ (kleo_assert_fail(sign || enc), QString());
 }
 
 static QString make_top_label_quickmode_text(bool sign, bool enc)
 {
     return
         enc    ? i18n("Please verify that correct certificates have been selected for each recipient:") :
         sign   ? i18n("Please verify that the correct certificate has been selected for the sender:") :
         /*else*/ (kleo_assert_fail(sign || enc), QString());
 }
 
 class SignEncryptEMailConflictDialog::Private
 {
     friend class ::Kleo::Crypto::Gui::SignEncryptEMailConflictDialog;
     SignEncryptEMailConflictDialog *const q;
 public:
     explicit Private(SignEncryptEMailConflictDialog *qq)
         : q(qq),
           senders(),
           recipients(),
           sign(true),
           encrypt(true),
           presetProtocol(UnknownProtocol),
           ui(q)
     {
 
     }
 
 private:
     void updateTopLabelText()
     {
         ui.conflictTopLB.setText(make_top_label_conflict_text(sign, encrypt));
         ui.quickModeTopLB.setText(make_top_label_quickmode_text(sign, encrypt));
     }
 
     void showHideWidgets()
     {
         const Protocol proto = q->selectedProtocol();
         const bool quickMode = q->isQuickMode();
 
         const bool needProtocolSelection = presetProtocol == UnknownProtocol;
 
         const bool needShowAllRecipientsCB =
             quickMode             ? false :
             needProtocolSelection ? needShowAllRecipients(OpenPGP) || needShowAllRecipients(CMS) :
             /* else */              needShowAllRecipients(proto)
             ;
 
         ui.showAllRecipientsCB.setVisible(needShowAllRecipientsCB);
 
         ui.pgpRB.setVisible(needProtocolSelection);
         ui.cmsRB.setVisible(needProtocolSelection);
 
         const bool showAll = !needShowAllRecipientsCB || ui.showAllRecipientsCB.isChecked();
 
         bool first;
         first = true;
         for (const CertificateSelectionLine &line : std::as_const(ui.signers)) {
             line.showHide(proto, first, showAll, sign);
         }
         ui.selectSigningCertificatesGB.setVisible(sign && (showAll || !first));
 
         first = true;
         for (const CertificateSelectionLine &line : std::as_const(ui.recipients)) {
             line.showHide(proto, first, showAll, encrypt);
         }
         ui.selectEncryptionCertificatesGB.setVisible(encrypt && (showAll || !first));
     }
 
     bool needShowAllRecipients(Protocol proto) const
     {
         if (sign) {
             if (const unsigned int num = std::count_if(ui.signers.cbegin(), ui.signers.cend(),
                                                        [proto](const CertificateSelectionLine &l) {
                                                            return l.wasInitiallyAmbiguous(proto);
                                                        })) {
                 if (num != ui.signers.size()) {
                     return true;
                 }
             }
         }
         if (encrypt) {
             if (const unsigned int num = std::count_if(ui.recipients.cbegin(), ui.recipients.cend(),
                                                       [proto](const CertificateSelectionLine &l) {
                                                           return l.wasInitiallyAmbiguous(proto);
                                                       })) {
                 if (num != ui.recipients.size()) {
                     return true;
                 }
             }
         }
         return false;
     }
 
     void createSendersAndRecipients()
     {
         ui.clearSendersAndRecipients();
 
         ui.addSelectSigningCertificatesGB();
         for (const Sender &s : std::as_const(senders)) {
             addSigner(s);
         }
 
         ui.addSelectEncryptionCertificatesGB();
         for (const Sender &s : std::as_const(senders)) {
             addRecipient(s);
         }
         for (const Recipient &r : std::as_const(recipients)) {
             addRecipient(r);
         }
     }
 
     void addSigner(const Sender &s)
     {
         ui.addSigner(s.mailbox().prettyAddress(),
                      s.signingCertificateCandidates(OpenPGP),
                      s.isSigningAmbiguous(OpenPGP),
                      s.signingCertificateCandidates(CMS),
                      s.isSigningAmbiguous(CMS),
                      q);
     }
 
     void addRecipient(const Sender &s)
     {
         ui.addRecipient(s.mailbox().prettyAddress(),
                         s.encryptToSelfCertificateCandidates(OpenPGP),
                         s.isEncryptionAmbiguous(OpenPGP),
                         s.encryptToSelfCertificateCandidates(CMS),
                         s.isEncryptionAmbiguous(CMS),
                         q);
     }
 
     void addRecipient(const Recipient &r)
     {
         ui.addRecipient(r.mailbox().prettyAddress(),
                         r.encryptionCertificateCandidates(OpenPGP),
                         r.isEncryptionAmbiguous(OpenPGP),
                         r.encryptionCertificateCandidates(CMS),
                         r.isEncryptionAmbiguous(CMS),
                         q);
     }
 
     bool isComplete(Protocol proto) const;
 
 private:
 
     void updateComplianceStatus()
     {
         if (!DeVSCompliance::isCompliant()) {
             return;
         }
         if (q->selectedProtocol() == UnknownProtocol ||
             (q->resolvedSigningKeys().empty() && q->resolvedEncryptionKeys().empty())) {
             return;
         }
         // Handle compliance
         bool de_vs = true;
         for (const auto &key: q->resolvedSigningKeys()) {
             if (!key.isDeVs() || keyValidity(key) < GpgME::UserID::Validity::Full) {
                 de_vs = false;
                 break;
             }
         }
         if (de_vs) {
             for (const auto &key: q->resolvedEncryptionKeys()) {
                 if (!key.isDeVs() || keyValidity(key) < GpgME::UserID::Validity::Full) {
                     de_vs = false;
                     break;
                 }
             }
         }
 
         auto btn = ui.buttonBox.button(QDialogButtonBox::Ok);
 
-        btn->setIcon(QIcon::fromTheme(de_vs
-                    ? QStringLiteral("security-high")
-                    : QStringLiteral("security-medium")));
-        if (!SystemInfo::isHighContrastModeActive()) {
-            btn->setStyleSheet(QStringLiteral("QPushButton { background-color: %1; }").arg(de_vs
-                        ? KColorScheme(QPalette::Active, KColorScheme::View).background(KColorScheme::PositiveBackground).color().name()
-                        : KColorScheme(QPalette::Active, KColorScheme::View).background(KColorScheme::NegativeBackground).color().name()));
-        }
+        DeVSCompliance::decorate(btn, de_vs);
         ui.complianceLB.setText(de_vs
                 ? i18nc("%1 is a placeholder for the name of a compliance mode. E.g. NATO RESTRICTED compliant or VS-NfD compliant",
                     "%1 communication possible.", DeVSCompliance::name(true))
                 : i18nc("%1 is a placeholder for the name of a compliance mode. E.g. NATO RESTRICTED compliant or VS-NfD compliant",
                     "%1 communication not possible.", DeVSCompliance::name(true)));
         ui.complianceLB.setVisible(true);
     }
 
     void updateDialogStatus()
     {
         ui.setOkButtonEnabled(q->isComplete());
         updateComplianceStatus();
     }
     void slotCompleteChanged()
     {
         updateDialogStatus();
     }
     void slotShowAllRecipientsToggled(bool)
     {
         showHideWidgets();
     }
     void slotProtocolChanged()
     {
         showHideWidgets();
         updateDialogStatus();
     }
     void slotCertificateSelectionDialogRequested()
     {
         const QObject *const s = q->sender();
         const Protocol proto = q->selectedProtocol();
         QPointer<CertificateSelectionDialog> dlg;
         for (const CertificateSelectionLine &l : std::as_const(ui.signers))
             if (s == l.toolButton()) {
                 dlg = create_signing_certificate_selection_dialog(q, proto, l.mailboxText());
                 if (dlg->exec()) {
                     l.addAndSelectCertificate(dlg->selectedCertificate());
                 }
                 // ### switch to key.protocol(), in case proto == UnknownProtocol
                 break;
             }
         for (const CertificateSelectionLine &l : std::as_const(ui.recipients))
             if (s == l.toolButton()) {
                 dlg = create_encryption_certificate_selection_dialog(q, proto, l.mailboxText());
                 if (dlg->exec()) {
                     l.addAndSelectCertificate(dlg->selectedCertificate());
                 }
                 // ### switch to key.protocol(), in case proto == UnknownProtocol
                 break;
             }
 #ifndef Q_OS_WIN
         // This leads to a crash on Windows. We don't really
         // leak memory here anyway because the destruction of the
         // dialog happens when the parent (q) is destroyed anyway.
         delete dlg;
 #endif
     }
 
 private:
     std::vector<Sender> senders;
     std::vector<Recipient> recipients;
 
     bool sign : 1;
     bool encrypt : 1;
     Protocol presetProtocol;
 
 private:
     struct Ui {
         QLabel conflictTopLB, quickModeTopLB;
         QCheckBox showAllRecipientsCB;
         QRadioButton pgpRB, cmsRB;
         QGroupBox selectSigningCertificatesGB;
         QGroupBox selectEncryptionCertificatesGB;
         QCheckBox quickModeCB;
         QDialogButtonBox buttonBox;
         QVBoxLayout vlay;
         QHBoxLayout  hlay;
         QHBoxLayout  hlay2;
         QGridLayout  glay;
         std::vector<CertificateSelectionLine> signers, recipients;
         QLabel complianceLB;
 
         void setOkButtonEnabled(bool enable)
         {
             return buttonBox.button(QDialogButtonBox::Ok)->setEnabled(enable);
         }
 
         explicit Ui(SignEncryptEMailConflictDialog *q)
             : conflictTopLB(make_top_label_conflict_text(true, true), q),
               quickModeTopLB(make_top_label_quickmode_text(true, true), q),
               showAllRecipientsCB(i18n("Show all recipients"), q),
               pgpRB(i18n("OpenPGP"), q),
               cmsRB(i18n("S/MIME"), q),
               selectSigningCertificatesGB(i18n("Select Signing Certificate"), q),
               selectEncryptionCertificatesGB(i18n("Select Encryption Certificate"), q),
               quickModeCB(i18n("Only show this dialog in case of conflicts (experimental)"), q),
               buttonBox(QDialogButtonBox::Ok | QDialogButtonBox::Cancel, Qt::Horizontal, q),
               vlay(q),
               hlay(),
               glay(),
               signers(),
               recipients()
         {
             KDAB_SET_OBJECT_NAME(conflictTopLB);
             KDAB_SET_OBJECT_NAME(quickModeTopLB);
             KDAB_SET_OBJECT_NAME(showAllRecipientsCB);
             KDAB_SET_OBJECT_NAME(pgpRB);
             KDAB_SET_OBJECT_NAME(cmsRB);
             KDAB_SET_OBJECT_NAME(selectSigningCertificatesGB);
             KDAB_SET_OBJECT_NAME(selectEncryptionCertificatesGB);
             KDAB_SET_OBJECT_NAME(quickModeCB);
             KDAB_SET_OBJECT_NAME(buttonBox);
             KDAB_SET_OBJECT_NAME(hlay);
             KDAB_SET_OBJECT_NAME(glay);
             KDAB_SET_OBJECT_NAME(vlay);
 
             q->setWindowTitle(i18nc("@title:window", "Select Certificates for Message"));
 
             conflictTopLB.hide();
 
             selectSigningCertificatesGB.setFlat(true);
             selectEncryptionCertificatesGB.setFlat(true);
             selectSigningCertificatesGB.setAlignment(Qt::AlignCenter);
             selectEncryptionCertificatesGB.setAlignment(Qt::AlignCenter);
 
             glay.setColumnStretch(2, 1);
             glay.setColumnStretch(3, 1);
 
             vlay.setSizeConstraint(QLayout::SetMinimumSize);
 
             vlay.addWidget(&conflictTopLB);
             vlay.addWidget(&quickModeTopLB);
 
             hlay.addWidget(&showAllRecipientsCB);
             hlay.addStretch(1);
             hlay.addWidget(&pgpRB);
             hlay.addWidget(&cmsRB);
             vlay.addLayout(&hlay);
 
             addSelectSigningCertificatesGB();
             addSelectEncryptionCertificatesGB();
             vlay.addLayout(&glay);
 
             vlay.addStretch(1);
 
             complianceLB.setVisible(false);
             hlay2.addStretch(1);
             hlay2.addWidget(&complianceLB, 0, Qt::AlignRight);
             hlay2.addWidget(&buttonBox, 0, Qt::AlignRight);
 
             vlay.addWidget(&quickModeCB, 0, Qt::AlignRight);
             vlay.addLayout(&hlay2);
 
 
             connect(&buttonBox, &QDialogButtonBox::accepted, q, &SignEncryptEMailConflictDialog::accept);
             connect(&buttonBox, &QDialogButtonBox::rejected, q, &SignEncryptEMailConflictDialog::reject);
 
             connect(&showAllRecipientsCB, SIGNAL(toggled(bool)), q, SLOT(slotShowAllRecipientsToggled(bool)));
             connect(&pgpRB, SIGNAL(toggled(bool)),
                     q, SLOT(slotProtocolChanged()));
             connect(&cmsRB, SIGNAL(toggled(bool)),
                     q, SLOT(slotProtocolChanged()));
         }
 
         void clearSendersAndRecipients()
         {
             std::vector<CertificateSelectionLine> sig, enc;
             sig.swap(signers);
             enc.swap(recipients);
             std::for_each(sig.begin(), sig.end(), std::mem_fn(&CertificateSelectionLine::kill));
             std::for_each(enc.begin(), enc.end(), std::mem_fn(&CertificateSelectionLine::kill));
             glay.removeWidget(&selectSigningCertificatesGB);
             glay.removeWidget(&selectEncryptionCertificatesGB);
         }
 
         void addSelectSigningCertificatesGB()
         {
             glay.addWidget(&selectSigningCertificatesGB,    glay.rowCount(), 0, 1, CertificateSelectionLine::NumColumns);
         }
         void addSelectEncryptionCertificatesGB()
         {
             glay.addWidget(&selectEncryptionCertificatesGB, glay.rowCount(), 0, 1, CertificateSelectionLine::NumColumns);
         }
 
         void addSigner(const QString &mailbox,
                        const std::vector<Key> &pgp, bool pgpAmbiguous,
                        const std::vector<Key> &cms, bool cmsAmbiguous, QWidget *q)
         {
             CertificateSelectionLine line(i18n("From:"), mailbox, pgp, pgpAmbiguous, cms, cmsAmbiguous, q, glay);
             signers.push_back(line);
         }
 
         void addRecipient(const QString &mailbox,
                           const std::vector<Key> &pgp, bool pgpAmbiguous,
                           const std::vector<Key> &cms, bool cmsAmbiguous, QWidget *q)
         {
             CertificateSelectionLine line(i18n("To:"), mailbox, pgp, pgpAmbiguous, cms, cmsAmbiguous, q, glay);
             recipients.push_back(line);
         }
 
     } ui;
 };
 
 SignEncryptEMailConflictDialog::SignEncryptEMailConflictDialog(QWidget *parent)
     : QDialog(parent), d(new Private(this))
 {
 
 }
 
 SignEncryptEMailConflictDialog::~SignEncryptEMailConflictDialog() {}
 
 void SignEncryptEMailConflictDialog::setPresetProtocol(Protocol p)
 {
     if (p == d->presetProtocol) {
         return;
     }
     const QSignalBlocker pgpBlocker(d->ui.pgpRB);
     const QSignalBlocker cmsBlocker(d->ui.cmsRB);
     really_check(d->ui.pgpRB, p == OpenPGP);
     really_check(d->ui.cmsRB, p == CMS);
     d->presetProtocol = p;
     d->showHideWidgets();
     d->updateDialogStatus();
 }
 
 Protocol SignEncryptEMailConflictDialog::selectedProtocol() const
 {
     if (d->presetProtocol != UnknownProtocol) {
         return d->presetProtocol;
     }
     if (d->ui.pgpRB.isChecked()) {
         return OpenPGP;
     }
     if (d->ui.cmsRB.isChecked()) {
         return CMS;
     }
     return UnknownProtocol;
 }
 
 void SignEncryptEMailConflictDialog::setSubject(const QString &subject)
 {
     setWindowTitle(i18nc("@title:window", "Select Certificates for Message \"%1\"", subject));
 }
 
 void SignEncryptEMailConflictDialog::setSign(bool sign)
 {
     if (sign == d->sign) {
         return;
     }
     d->sign = sign;
     d->updateTopLabelText();
     d->showHideWidgets();
     d->updateDialogStatus();
 }
 
 void SignEncryptEMailConflictDialog::setEncrypt(bool encrypt)
 {
     if (encrypt == d->encrypt) {
         return;
     }
     d->encrypt = encrypt;
     d->updateTopLabelText();
     d->showHideWidgets();
     d->updateDialogStatus();
 }
 
 void SignEncryptEMailConflictDialog::setSenders(const std::vector<Sender> &senders)
 {
     if (senders == d->senders) {
         return;
     }
     d->senders = senders;
     d->createSendersAndRecipients();
     d->showHideWidgets();
     d->updateDialogStatus();
 }
 
 void SignEncryptEMailConflictDialog::setRecipients(const std::vector<Recipient> &recipients)
 {
     if (d->recipients == recipients) {
         return;
     }
     d->recipients = recipients;
     d->createSendersAndRecipients();
     d->showHideWidgets();
     d->updateDialogStatus();
 }
 
 void SignEncryptEMailConflictDialog::pickProtocol()
 {
 
     if (selectedProtocol() != UnknownProtocol) {
         return;    // already picked
     }
 
     const bool pgp = d->isComplete(OpenPGP);
     const bool cms = d->isComplete(CMS);
 
     if (pgp && !cms) {
         d->ui.pgpRB.setChecked(true);
     } else if (cms && !pgp) {
         d->ui.cmsRB.setChecked(true);
     }
 }
 
 bool SignEncryptEMailConflictDialog::isComplete() const
 {
     const Protocol proto = selectedProtocol();
     return proto != UnknownProtocol && d->isComplete(proto);
 }
 
 bool SignEncryptEMailConflictDialog::Private::isComplete(Protocol proto) const
 {
     return (!sign || std::none_of(ui.signers.cbegin(), ui.signers.cend(),
                                   [proto](const CertificateSelectionLine &l) {
                                       return l.isStillAmbiguous(proto);
                                   }))
            && (!encrypt || std::none_of(ui.recipients.cbegin(), ui.recipients.cend(),
                                         [proto](const CertificateSelectionLine &l) {
                                             return l.isStillAmbiguous(proto);
                                         }));
 }
 
 static std::vector<Key> get_keys(const std::vector<CertificateSelectionLine> &lines, Protocol proto)
 {
     if (proto == UnknownProtocol) {
         return std::vector<Key>();
     }
     Q_ASSERT(proto == OpenPGP || proto == CMS);
 
     std::vector<Key> keys;
     keys.reserve(lines.size());
     std::transform(lines.cbegin(), lines.cend(), std::back_inserter(keys),
                    [proto](const CertificateSelectionLine &l) {
                        return l.key(proto);
                    });
     return keys;
 }
 
 std::vector<Key> SignEncryptEMailConflictDialog::resolvedSigningKeys() const
 {
     return d->sign    ? get_keys(d->ui.signers,    selectedProtocol()) : std::vector<Key>();
 }
 
 std::vector<Key> SignEncryptEMailConflictDialog::resolvedEncryptionKeys() const
 {
     return d->encrypt ? get_keys(d->ui.recipients, selectedProtocol()) : std::vector<Key>();
 }
 
 void SignEncryptEMailConflictDialog::setQuickMode(bool on)
 {
     d->ui.quickModeCB.setChecked(on);
 }
 
 bool SignEncryptEMailConflictDialog::isQuickMode() const
 {
     return d->ui.quickModeCB.isChecked();
 }
 
 void SignEncryptEMailConflictDialog::setConflict(bool conflict)
 {
     d->ui.conflictTopLB.setVisible(conflict);
     d->ui.quickModeTopLB.setVisible(!conflict);
 }
 
 #include "moc_signencryptemailconflictdialog.cpp"
diff --git a/src/crypto/gui/signencryptfileswizard.cpp b/src/crypto/gui/signencryptfileswizard.cpp
index a503604f6..600b72908 100644
--- a/src/crypto/gui/signencryptfileswizard.cpp
+++ b/src/crypto/gui/signencryptfileswizard.cpp
@@ -1,693 +1,687 @@
 /*  crypto/gui/signencryptfileswizard.cpp
 
     This file is part of Kleopatra, the KDE keymanager
     SPDX-FileCopyrightText: 2009 Klarälvdalens Datakonsult AB
 
     SPDX-FileCopyrightText: 2016 Bundesamt für Sicherheit in der Informationstechnik
     SPDX-FileContributor: Intevation GmbH
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #include <config-kleopatra.h>
 
 #include "signencryptfileswizard.h"
 #include "signencryptwidget.h"
 
 #include "newresultpage.h"
 
 #include <fileoperationspreferences.h>
 #include <settings.h>
 
 #include <KLocalizedString>
 #include <KSharedConfig>
 #include <KColorScheme>
 #include <KConfigGroup>
 #include <KWindowConfig>
 #include <KMessageBox>
 #include <KMessageWidget>
 
 #include "kleopatra_debug.h"
 #include <Libkleo/Compliance>
 #include <Libkleo/GnuPG>
 #include <Libkleo/Formatting>
 #include <Libkleo/SystemInfo>
 
 #include <Libkleo/FileNameRequester>
 #include <QWindow>
 #include <QVBoxLayout>
 #include <QWizardPage>
 #include <QGroupBox>
 #include <QLabel>
 #include <QIcon>
 #include <QCheckBox>
+#include <QPushButton>
 #include <QStyle>
 
 #include <gpgme++/key.h>
 
 #include <array>
 
 using namespace GpgME;
 using namespace Kleo;
 using namespace Kleo::Crypto::Gui;
 
 enum Page {
     SigEncPageId,
     ResultPageId,
 
     NumPages
 };
 
 class FileNameRequesterWithIcon : public QWidget
 {
     Q_OBJECT
 
 public:
     explicit FileNameRequesterWithIcon(QDir::Filters filter, QWidget *parent = nullptr)
         : QWidget(parent)
     {
         auto layout = new QHBoxLayout{this};
         layout->setContentsMargins(0, 0, 0, 0);
         mIconLabel = new QLabel{this};
         mRequester = new FileNameRequester{filter, this};
         mRequester->setExistingOnly(false);
         layout->addWidget(mIconLabel);
         layout->addWidget(mRequester);
 
         setFocusPolicy(mRequester->focusPolicy());
         setFocusProxy(mRequester);
 
         connect(mRequester, &FileNameRequester::fileNameChanged,
                 this, &FileNameRequesterWithIcon::fileNameChanged);
     }
 
     void setIcon(const QIcon &icon)
     {
         mIconLabel->setPixmap(icon.pixmap(32, 32));
     }
 
     void setFileName(const QString &name)
     {
         mRequester->setFileName(name);
     }
 
     QString fileName() const
     {
         return mRequester->fileName();
     }
 
     void setNameFilter(const QString &nameFilter)
     {
         mRequester->setNameFilter(nameFilter);
     }
 
     QString nameFilter() const
     {
         return mRequester->nameFilter();
     }
 
     FileNameRequester *requester()
     {
         return mRequester;
     }
 
 Q_SIGNALS:
     void fileNameChanged(const QString &filename);
 
 protected:
     bool event(QEvent *e) override
     {
         if (e->type() == QEvent::ToolTipChange) {
             mRequester->setToolTip(toolTip());
         }
         return QWidget::event(e);
     }
 
 private:
     QLabel *mIconLabel;
     FileNameRequester *mRequester;
 };
 
 class SigEncPage: public QWizardPage
 {
     Q_OBJECT
 
 public:
     explicit SigEncPage(QWidget *parent = nullptr)
         : QWizardPage(parent),
           mParent((SignEncryptFilesWizard *) parent),
           mWidget(new SignEncryptWidget),
           mOutLayout(new QVBoxLayout),
           mOutputLabel{nullptr},
           mArchive(false),
           mUseOutputDir(false),
           mSingleFile{true}
     {
         setTitle(i18nc("@title", "Sign / Encrypt Files"));
         auto vLay = new QVBoxLayout(this);
         vLay->setContentsMargins(0, 0, 0, 0);
         if (!Settings{}.cmsEnabled()) {
             mWidget->setProtocol(GpgME::OpenPGP);
         }
         mWidget->setSignAsText(i18nc("@option:check on SignEncryptPage",
                                      "&Sign as:"));
         mWidget->setEncryptForMeText(i18nc("@option:check on SignEncryptPage",
                                            "Encrypt for &me:"));
         mWidget->setEncryptForOthersText(i18nc("@option:check on SignEncryptPage",
                                                "Encrypt for &others:"));
         mWidget->setEncryptWithPasswordText(i18nc("@option:check on SignEncryptPage",
                                                   "Encrypt with &password. Anyone you share the password with can read the data."));
         vLay->addWidget(mWidget);
         connect(mWidget, &SignEncryptWidget::operationChanged, this,
                 &SigEncPage::updateCommitButton);
         connect(mWidget, &SignEncryptWidget::keysChanged, this,
                 &SigEncPage::updateFileWidgets);
 
         auto outputGrp = new QGroupBox(i18nc("@title:group", "Output"));
         outputGrp->setLayout(mOutLayout);
 
         mPlaceholderWidget = new QLabel(i18n("Please select an action."));
         mOutLayout->addWidget(mPlaceholderWidget);
 
         mOutputLabel = new QLabel(i18nc("@label on SignEncryptPage", "Output &files/folder:"));
         mOutLayout->addWidget(mOutputLabel);
 
         createRequesters(mOutLayout);
 
         mUseOutputDirChk = new QCheckBox(i18nc("@option:check on SignEncryptPage",
                                                "Encrypt / Sign &each file separately."));
         mUseOutputDirChk->setToolTip(i18nc("@info:tooltip",
                                            "Keep each file separate instead of creating an archive for all."));
         mOutLayout->addWidget(mUseOutputDirChk);
         connect (mUseOutputDirChk, &QCheckBox::toggled, this, [this] (bool state) {
                     mUseOutputDir = state;
                     mArchive = !mUseOutputDir && !mSingleFile;
                     updateFileWidgets();
                 });
 
         vLay->addWidget(outputGrp);
 
         auto messageWidget = new KMessageWidget;
         messageWidget->setMessageType(KMessageWidget::Error);
         messageWidget->setIcon(style()->standardIcon(QStyle::SP_MessageBoxCritical, nullptr, this));
         messageWidget->setText(i18n("Signing and encrypting files is not possible."));
         messageWidget->setToolTip(xi18nc("@info %1 is a placeholder for the name of a compliance mode. E.g. NATO RESTRICTED compliant or VS-NfD compliant",
                                          "<para>You cannot use <application>Kleopatra</application> for signing or encrypting files "
                                          "because the <application>GnuPG</application> system used by <application>Kleopatra</application> is not %1.</para>",
                                          DeVSCompliance::name(true)));
         messageWidget->setCloseButtonVisible(false);
         messageWidget->setVisible(DeVSCompliance::isActive() && !DeVSCompliance::isCompliant());
         vLay->addWidget(messageWidget);
 
         setMinimumHeight(300);
     }
 
     void setEncryptionPreset(bool value)
     {
         mWidget->setEncryptionChecked(value);
     }
 
     void setSigningPreset(bool value)
     {
         mWidget->setSigningChecked(value);
     }
 
     bool isComplete() const override
     {
         if (DeVSCompliance::isActive() && !DeVSCompliance::isCompliant()) {
             return false;
         }
         return mWidget->isComplete();
     }
 
     int nextId() const override
     {
         return ResultPageId;
     }
 
     void initializePage() override
     {
         setCommitPage(true);
         updateCommitButton(mWidget->currentOp());
     }
 
     void setArchiveForced(bool archive)
     {
         mArchive = archive;
         setArchiveMutable(!archive);
     }
 
     void setArchiveMutable(bool archive)
     {
         mUseOutputDirChk->setVisible(archive);
         if (archive) {
             const KConfigGroup archCfg(KSharedConfig::openConfig(), "SignEncryptFilesWizard");
             mUseOutputDirChk->setChecked(archCfg.readEntry("LastUseOutputDir", false));
         } else {
             mUseOutputDirChk->setChecked(false);
         }
     }
 
     void setSingleFile(bool singleFile)
     {
         mSingleFile = singleFile;
         mArchive = !mUseOutputDir && !mSingleFile;
     }
 
     bool validatePage() override
     {
         if (DeVSCompliance::isActive() && !DeVSCompliance::isCompliant()) {
             KMessageBox::sorry(topLevelWidget(),
                                xi18nc("@info %1 is a placeholder for the name of a compliance mode. E.g. NATO RESTRICTED compliant or VS-NfD compliant",
                                       "<para>Sorry! You cannot use <application>Kleopatra</application> for signing or encrypting files "
                                       "because the <application>GnuPG</application> system used by <application>Kleopatra</application> is not %1.</para>",
                                       DeVSCompliance::name(true)));
             return false;
         }
         bool sign = !mWidget->signKey().isNull();
         bool encrypt = !mWidget->selfKey().isNull() || !mWidget->recipients().empty();
         if (!mWidget->validate()) {
             return false;
         }
         mWidget->saveOwnKeys();
         if (mUseOutputDirChk->isVisible()) {
             KConfigGroup archCfg(KSharedConfig::openConfig(), "SignEncryptFilesWizard");
             archCfg.writeEntry("LastUseOutputDir", mUseOutputDir);
         }
 
         if (sign && !encrypt && mArchive) {
             return KMessageBox::warningContinueCancel(this,
             xi18nc("@info",
             "<para>Archiving in combination with sign-only currently requires what are known as opaque signatures - "
             "unlike detached ones, these embed the content in the signature.</para>"
             "<para>This format is rather unusual. You might want to archive the files separately, "
             "and then sign the archive as one file with Kleopatra.</para>"
             "<para>Future versions of Kleopatra are expected to also support detached signatures in this case.</para>"),
             i18nc("@title:window", "Unusual Signature Warning"),
             KStandardGuiItem::cont(), KStandardGuiItem::cancel(),
             QStringLiteral("signencryptfileswizard-archive+sign-only-warning"))
             == KMessageBox::Continue;
         } else if (sign && !encrypt) {
             return true;
         }
 
         if (!mWidget->selfKey().isNull() || mWidget->encryptSymmetric()) {
             return true;
         }
         const auto recipientKeys = recipients();
         const bool hasSecret = std::any_of(std::begin(recipientKeys), std::end(recipientKeys),
                                            [](const auto &k) { return k.hasSecret(); });
         if (!hasSecret) {
             if (KMessageBox::warningContinueCancel(this,
             xi18nc("@info",
             "<para>None of the recipients you are encrypting to seems to be your own.</para>"
             "<para>This means that you will not be able to decrypt the data anymore, once encrypted.</para>"
             "<para>Do you want to continue, or cancel to change the recipient selection?</para>"),
             i18nc("@title:window", "Encrypt-To-Self Warning"),
             KStandardGuiItem::cont(),
             KStandardGuiItem::cancel(),
             QStringLiteral("warn-encrypt-to-non-self"), KMessageBox::Notify | KMessageBox::Dangerous)
             == KMessageBox::Cancel) {
                 return false;
             }
         }
         return true;
     }
 
     std::vector<Key> recipients() const
     {
         return mWidget->recipients();
     }
 
     /* In the future we might find a usecase for multiple
      * signers */
     std::vector<Key> signers() const
     {
         const Key k = mWidget->signKey();
         if (!k.isNull()) {
             return {k};
         }
         return {};
     }
 
 private:
     struct RequesterInfo {
         SignEncryptFilesWizard::KindNames id;
         QString icon;
         QString toolTip;
         QString accessibleName;
         QString nameFilterBinary;
         QString nameFilterAscii;
     };
     void createRequesters(QBoxLayout *lay) {
         static const std::array<RequesterInfo, 6> requestersInfo = {{
             {
                 SignEncryptFilesWizard::SignatureCMS,
                 QStringLiteral("document-sign"),
                 i18nc("@info:tooltip", "This is the filename of the S/MIME signature."),
                 i18nc("Lineedit accessible name", "S/MIME signature file"),
                 i18nc("Name filter binary", "S/MIME Signatures (*.p7s)"),
                 i18nc("Name filter ASCII", "S/MIME Signatures (*.p7s *.pem)"),
             },
             {
                 SignEncryptFilesWizard::SignaturePGP,
                 QStringLiteral("document-sign"),
                 i18nc("@info:tooltip", "This is the filename of the detached OpenPGP signature."),
                 i18nc("Lineedit accessible name", "OpenPGP signature file"),
                 i18nc("Name filter binary", "OpenPGP Signatures (*.sig *.pgp)"),
                 i18nc("Name filter ASCII", "OpenPGP Signatures (*.asc *.sig)"),
             },
             {
                 SignEncryptFilesWizard::CombinedPGP,
                 QStringLiteral("document-edit-sign-encrypt"),
                 i18nc("@info:tooltip", "This is the filename of the OpenPGP-signed and encrypted file."),
                 i18nc("Lineedit accessible name", "OpenPGP signed and encrypted file"),
                 i18nc("Name filter binary", "OpenPGP Files (*.gpg *.pgp)"),
                 i18nc("Name filter ASCII", "OpenPGP Files (*.asc)"),
             },
             {
                 SignEncryptFilesWizard::EncryptedPGP,
                 QStringLiteral("document-encrypt"),
                 i18nc("@info:tooltip", "This is the filename of the OpenPGP encrypted file."),
                 i18nc("Lineedit accessible name", "OpenPGP encrypted file"),
                 i18nc("Name filter binary", "OpenPGP Files (*.gpg *.pgp)"),
                 i18nc("Name filter ASCII", "OpenPGP Files (*.asc)"),
             },
             {
                 SignEncryptFilesWizard::EncryptedCMS,
                 QStringLiteral("document-encrypt"),
                 i18nc("@info:tooltip", "This is the filename of the S/MIME encrypted file."),
                 i18nc("Lineedit accessible name", "S/MIME encrypted file"),
                 i18nc("Name filter binary", "S/MIME Files (*.p7m)"),
                 i18nc("Name filter ASCII", "S/MIME Files (*.p7m *.pem)"),
             },
             {
                 SignEncryptFilesWizard::Directory,
                 QStringLiteral("folder"),
                 i18nc("@info:tooltip", "The resulting files are written to this directory."),
                 i18nc("Lineedit accessible name", "Output directory"),
                 {},
                 {},
             },
         }};
 
         if (!mRequesters.empty()) {
             return;
         }
         const bool isAscii = FileOperationsPreferences().addASCIIArmor();
         for (const auto &requester : requestersInfo) {
             const auto id = requester.id;
             auto requesterWithIcon = new FileNameRequesterWithIcon{id == SignEncryptFilesWizard::Directory ? QDir::Dirs : QDir::Files, this};
             requesterWithIcon->setIcon(QIcon::fromTheme(requester.icon));
             requesterWithIcon->setToolTip(requester.toolTip);
             requesterWithIcon->requester()->setAccessibleNameOfLineEdit(requester.accessibleName);
             requesterWithIcon->setNameFilter(isAscii ? requester.nameFilterAscii : requester.nameFilterBinary);
             lay->addWidget(requesterWithIcon);
 
             connect(requesterWithIcon, &FileNameRequesterWithIcon::fileNameChanged, this, [this, id](const QString &newName) {
                 mOutNames[id] = newName;
             });
 
             mRequesters.insert(id, requesterWithIcon);
         }
     }
 
 public:
     void setOutputNames(const QMap<int, QString> &names) {
         Q_ASSERT(mOutNames.isEmpty());
         for (auto it = std::begin(names); it != std::end(names); ++it) {
             mRequesters.value(it.key())->setFileName(it.value());
         }
         mOutNames = names;
         updateFileWidgets();
     }
 
     QMap <int, QString> outputNames() const {
         if (!mUseOutputDir) {
             auto ret = mOutNames;
             ret.remove(SignEncryptFilesWizard::Directory);
             return ret;
         }
         return mOutNames;
     }
 
     bool encryptSymmetric() const
     {
         return mWidget->encryptSymmetric();
     }
 
 private Q_SLOTS:
     void updateCommitButton(const QString &label)
     {
         if (mParent->currentPage() != this) {
             return;
         }
-        auto btn = mParent->button(QWizard::CommitButton);
+        auto btn = qobject_cast<QPushButton*>(mParent->button(QWizard::CommitButton));
         if (!label.isEmpty()) {
             mParent->setButtonText(QWizard::CommitButton, label);
             if (DeVSCompliance::isActive()) {
                 const bool de_vs = DeVSCompliance::isCompliant() && mWidget->isDeVsAndValid();
-                btn->setIcon(QIcon::fromTheme(de_vs
-                                             ? QStringLiteral("security-high")
-                                             : QStringLiteral("security-medium")));
-                if (!SystemInfo::isHighContrastModeActive()) {
-                    btn->setStyleSheet(QStringLiteral("QPushButton { background-color: %1; }").arg(de_vs
-                                    ? KColorScheme(QPalette::Active, KColorScheme::View).background(KColorScheme::PositiveBackground).color().name()
-                                    : KColorScheme(QPalette::Active, KColorScheme::View).background(KColorScheme::NegativeBackground).color().name()));
-                }
+                DeVSCompliance::decorate(btn, de_vs);
                 mParent->setLabelText(de_vs
                         ? i18nc("%1 is a placeholder for the name of a compliance mode. E.g. NATO RESTRICTED compliant or VS-NfD compliant",
                             "%1 communication possible.", DeVSCompliance::name(true))
                         : i18nc("%1 is a placeholder for the name of a compliance mode. E.g. NATO RESTRICTED compliant or VS-NfD compliant",
                             "%1 communication not possible.", DeVSCompliance::name(true)));
             }
         } else {
             mParent->setButtonText(QWizard::CommitButton, i18n("Next"));
             btn->setIcon(QIcon());
             btn->setStyleSheet(QString());
         }
         Q_EMIT completeChanged();
     }
 
     void updateFileWidgets()
     {
         if (mRequesters.isEmpty()) {
             return;
         }
         const std::vector<Key> recipients = mWidget->recipients();
         const Key sigKey = mWidget->signKey();
         const bool pgp = mWidget->encryptSymmetric() ||
                          std::any_of(std::cbegin(recipients), std::cend(recipients),
                                      [](const auto &k) { return k.protocol() == Protocol::OpenPGP; });
         const bool cms = std::any_of(std::cbegin(recipients), std::cend(recipients),
                                      [](const auto &k) { return k.protocol() == Protocol::CMS; });
 
         mOutLayout->setEnabled(false);
         if (cms || pgp || !sigKey.isNull()) {
             mPlaceholderWidget->setVisible(false);
             mOutputLabel->setVisible(true);
             mRequesters[SignEncryptFilesWizard::SignatureCMS]->setVisible(!mUseOutputDir && sigKey.protocol() == Protocol::CMS);
             mRequesters[SignEncryptFilesWizard::EncryptedCMS]->setVisible(!mUseOutputDir && cms);
             mRequesters[SignEncryptFilesWizard::CombinedPGP]->setVisible(!mUseOutputDir && sigKey.protocol() == Protocol::OpenPGP && pgp);
             mRequesters[SignEncryptFilesWizard::EncryptedPGP]->setVisible(!mUseOutputDir && sigKey.protocol() != Protocol::OpenPGP && pgp);
             mRequesters[SignEncryptFilesWizard::SignaturePGP]->setVisible(!mUseOutputDir && sigKey.protocol() == Protocol::OpenPGP && !pgp);
             mRequesters[SignEncryptFilesWizard::Directory]->setVisible(mUseOutputDir);
             auto firstNotHidden = std::find_if(std::cbegin(mRequesters), std::cend(mRequesters),
                                                [](auto w) { return !w->isHidden(); });
             mOutputLabel->setBuddy(*firstNotHidden);
         } else {
             mPlaceholderWidget->setVisible(true);
             mOutputLabel->setVisible(false);
             std::for_each(std::cbegin(mRequesters), std::cend(mRequesters),
                           [](auto w) { w->setVisible(false); });
             mOutputLabel->setBuddy(nullptr);
         }
         mOutLayout->setEnabled(true);
     }
 
 private:
     SignEncryptFilesWizard *mParent;
     SignEncryptWidget *mWidget;
     QMap <int, QString> mOutNames;
     QMap <int, FileNameRequesterWithIcon *> mRequesters;
     QVBoxLayout *mOutLayout;
     QWidget *mPlaceholderWidget;
     QCheckBox *mUseOutputDirChk;
     QLabel *mOutputLabel;
     bool mArchive;
     bool mUseOutputDir;
     bool mSingleFile;
 };
 
 class ResultPage : public NewResultPage
 {
     Q_OBJECT
 
 public:
     explicit ResultPage(QWidget *parent = nullptr)
         : NewResultPage(parent),
           mParent((SignEncryptFilesWizard *) parent)
     {
         setTitle(i18nc("@title", "Results"));
         setSubTitle(i18nc("@title",
                           "Status and progress of the crypto operations is shown here."));
     }
 
     void initializePage() override
     {
         mParent->setLabelText(QString());
     }
 
 private:
     SignEncryptFilesWizard *mParent;
 };
 
 SignEncryptFilesWizard::SignEncryptFilesWizard(QWidget *parent, Qt::WindowFlags f)
     : QWizard(parent, f)
 {
     readConfig();
 
     const bool de_vs = DeVSCompliance::isActive();
 #ifdef Q_OS_WIN
     // Enforce modern style to avoid vista style ugliness.
     setWizardStyle(QWizard::ModernStyle);
 #endif
     mSigEncPage = new SigEncPage(this);
     mResultPage = new ResultPage(this);
 
     connect(this, &QWizard::currentIdChanged, this,
             &SignEncryptFilesWizard::slotCurrentIdChanged);
     setPage(SigEncPageId, mSigEncPage);
     setPage(ResultPageId, mResultPage);
     setOptions(QWizard::IndependentPages |
                (de_vs ? QWizard::HaveCustomButton1 : QWizard::WizardOption(0)) |
                QWizard::NoBackButtonOnLastPage |
                QWizard::NoBackButtonOnStartPage);
 
     if (de_vs) {
         /* We use a custom button to display a label next to the
            buttons.  */
         auto btn = button(QWizard::CustomButton1);
         /* We style the button so that it looks and acts like a
            label.  */
         btn->setStyleSheet(QStringLiteral("border: none"));
         btn->setFocusPolicy(Qt::NoFocus);
     }
 }
 
 void SignEncryptFilesWizard::setLabelText(const QString &label)
 {
     button(QWizard::CommitButton)->setToolTip(label);
     setButtonText(QWizard::CustomButton1, label);
 }
 
 void SignEncryptFilesWizard::slotCurrentIdChanged(int id)
 {
     if (id == ResultPageId) {
         Q_EMIT operationPrepared();
     }
 }
 
 SignEncryptFilesWizard::~SignEncryptFilesWizard()
 {
     qCDebug(KLEOPATRA_LOG);
     writeConfig();
 }
 
 void SignEncryptFilesWizard::setSigningPreset(bool preset)
 {
     mSigEncPage->setSigningPreset(preset);
 }
 
 void SignEncryptFilesWizard::setSigningUserMutable(bool mut)
 {
     if (mut == mSigningUserMutable) {
         return;
     }
     mSigningUserMutable = mut;
 }
 
 void SignEncryptFilesWizard::setEncryptionPreset(bool preset)
 {
     mSigEncPage->setEncryptionPreset(preset);
 }
 
 void SignEncryptFilesWizard::setEncryptionUserMutable(bool mut)
 {
     if (mut == mEncryptionUserMutable) {
         return;
     }
     mEncryptionUserMutable = mut;
 }
 
 void SignEncryptFilesWizard::setArchiveForced(bool archive)
 {
     mSigEncPage->setArchiveForced(archive);
 }
 
 void SignEncryptFilesWizard::setArchiveMutable(bool archive)
 {
     mSigEncPage->setArchiveMutable(archive);
 }
 
 void SignEncryptFilesWizard::setSingleFile(bool singleFile)
 {
     mSigEncPage->setSingleFile(singleFile);
 }
 
 std::vector<Key> SignEncryptFilesWizard::resolvedRecipients() const
 {
     return mSigEncPage->recipients();
 }
 
 std::vector<Key> SignEncryptFilesWizard::resolvedSigners() const
 {
     return mSigEncPage->signers();
 }
 
 void SignEncryptFilesWizard::setTaskCollection(const std::shared_ptr<Kleo::Crypto::TaskCollection> &coll)
 {
     mResultPage->setTaskCollection(coll);
 }
 
 void SignEncryptFilesWizard::setOutputNames(const QMap<int, QString> &map) const
 {
     mSigEncPage->setOutputNames(map);
 }
 
 QMap<int, QString> SignEncryptFilesWizard::outputNames() const
 {
     return mSigEncPage->outputNames();
 }
 
 bool SignEncryptFilesWizard::encryptSymmetric() const
 {
     return mSigEncPage->encryptSymmetric();
 }
 
 void SignEncryptFilesWizard::readConfig()
 {
     winId(); // ensure there's a window created
 
     // set default window size
     windowHandle()->resize(640, 480);
 
     // restore size from config file
     KConfigGroup cfgGroup(KSharedConfig::openConfig(), "SignEncryptFilesWizard");
     KWindowConfig::restoreWindowSize(windowHandle(), cfgGroup);
 
     // NOTICE: QWindow::setGeometry() does NOT impact the backing QWidget geometry even if the platform
     // window was created -> QTBUG-40584. We therefore copy the size here.
     // TODO: remove once this was resolved in QWidget QPA
     resize(windowHandle()->size());
 }
 
 void SignEncryptFilesWizard::writeConfig()
 {
     KConfigGroup cfgGroup(KSharedConfig::openConfig(), "SignEncryptFilesWizard");
     KWindowConfig::saveWindowSize(windowHandle(), cfgGroup);
     cfgGroup.sync();
 }
 
 
 #include "signencryptfileswizard.moc"
diff --git a/src/view/padwidget.cpp b/src/view/padwidget.cpp
index 0cebade54..8caddc0b0 100644
--- a/src/view/padwidget.cpp
+++ b/src/view/padwidget.cpp
@@ -1,547 +1,540 @@
 /* -*- mode: c++; c-basic-offset:4 -*-
     padwidget.cpp
 
     This file is part of Kleopatra, the KDE keymanager
     SPDX-FileCopyrightText: 2018 Intevation GmbH
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 #include "padwidget.h"
 
 #include "kleopatra_debug.h"
 
 #include <settings.h>
 
 #include <Libkleo/KleoException>
 #include <Libkleo/Classify>
 #include <Libkleo/Compliance>
 #include <Libkleo/KeyCache>
 #include <Libkleo/Formatting>
 #include <Libkleo/SystemInfo>
 
 #include "crypto/gui/signencryptwidget.h"
 #include "crypto/gui/resultitemwidget.h"
 
 #include "crypto/signencrypttask.h"
 #include "crypto/decryptverifytask.h"
 #include <Libkleo/GnuPG>
 #include "utils/input.h"
 #include "utils/output.h"
 
 #include "commands/importcertificatefromdatacommand.h"
 
 #include <gpgme++/data.h>
 #include <gpgme++/decryptionresult.h>
 
 #include <QGpgME/DataProvider>
 
 #include <QButtonGroup>
 #include <QFontDatabase>
 #include <QFontMetrics>
 #include <QLabel>
 #include <QProgressBar>
 #include <QPushButton>
 #include <QRadioButton>
 #include <QTabWidget>
 #include <QTextEdit>
 #include <QVBoxLayout>
 #include <QStyle>
 
 #include <KLocalizedString>
 #include <KColorScheme>
 #include <KMessageBox>
 #include <KMessageWidget>
 #include <KSharedConfig>
 #include <KConfigGroup>
 
 using namespace Kleo;
 using namespace Kleo::Crypto;
 using namespace Kleo::Crypto::Gui;
 
 static GpgME::Protocol getProtocol(const std::shared_ptr<const Kleo::Crypto::Task::Result> &result)
 {
     const auto dvResult = dynamic_cast<const Kleo::Crypto::DecryptVerifyResult*>(result.get());
     if (dvResult) {
         for (const auto &key: KeyCache::instance()->findRecipients(dvResult->decryptionResult())) {
             return key.protocol();
         }
         for (const auto &key: KeyCache::instance()->findSigners(dvResult->verificationResult())) {
             return key.protocol();
         }
     }
     return GpgME::UnknownProtocol;
 }
 
 class PadWidget::Private
 {
     friend class ::Kleo::PadWidget;
 
 public:
     Private(PadWidget *qq):
         q(qq),
         mEdit(new QTextEdit),
         mCryptBtn(new QPushButton(QIcon::fromTheme(QStringLiteral("document-edit-sign-encrypt")), i18n("Sign / Encrypt Notepad"))),
         mDecryptBtn(new QPushButton(QIcon::fromTheme(QStringLiteral("document-edit-decrypt-verify")), i18n("Decrypt / Verify Notepad"))),
         mRevertBtn(new QPushButton(QIcon::fromTheme(QStringLiteral("edit-undo")), i18n("Revert"))),
         mMessageWidget{new KMessageWidget},
         mAdditionalInfoLabel(new QLabel),
         mSigEncWidget(new SignEncryptWidget(nullptr, true)),
         mProgressBar(new QProgressBar),
         mProgressLabel(new QLabel),
         mLastResultWidget(nullptr),
         mPGPRB(nullptr),
         mCMSRB(nullptr),
         mImportProto(GpgME::UnknownProtocol)
     {
         auto vLay = new QVBoxLayout(q);
 
         auto btnLay = new QHBoxLayout;
         vLay->addLayout(btnLay);
         btnLay->addWidget(mCryptBtn);
         btnLay->addWidget(mDecryptBtn);
         btnLay->addWidget(mRevertBtn);
 
         mRevertBtn->setVisible(false);
 
         btnLay->addWidget(mAdditionalInfoLabel);
 
         btnLay->addStretch(-1);
 
         mMessageWidget->setMessageType(KMessageWidget::Warning);
         mMessageWidget->setIcon(q->style()->standardIcon(QStyle::SP_MessageBoxWarning, nullptr, q));
         mMessageWidget->setText(i18n("Signing and encryption is not possible."));
         mMessageWidget->setToolTip(xi18nc("@info %1 is a placeholder for the name of a compliance mode. E.g. NATO RESTRICTED compliant or VS-NfD compliant",
                                          "<para>You cannot use <application>Kleopatra</application> for signing or encryption "
                                          "because the <application>GnuPG</application> system used by <application>Kleopatra</application> is not %1.</para>",
                                          DeVSCompliance::name(true)));
         mMessageWidget->setCloseButtonVisible(false);
         mMessageWidget->setVisible(false);
         vLay->addWidget(mMessageWidget);
 
         mProgressBar->setRange(0, 0);
         mProgressBar->setVisible(false);
         mProgressLabel->setVisible(false);
         auto progLay = new QHBoxLayout;
 
         progLay->addWidget(mProgressLabel);
         progLay->addWidget(mProgressBar);
 
         mStatusLay = new QVBoxLayout;
         mStatusLay->addLayout(progLay);
         vLay->addLayout(mStatusLay, 0);
 
         auto tabWidget = new QTabWidget;
         vLay->addWidget(tabWidget, 1);
 
         tabWidget->addTab(mEdit, QIcon::fromTheme(QStringLiteral("edittext")), i18n("Notepad"));
 
         // The recipients area
         auto recipientsWidget = new QWidget;
         auto recipientsVLay = new QVBoxLayout(recipientsWidget);
         auto protocolSelectionLay = new QHBoxLayout;
 
         bool pgpOnly = KeyCache::instance()->pgpOnly();
         if (!pgpOnly) {
             recipientsVLay->addLayout(protocolSelectionLay);
         }
 
         protocolSelectionLay->addWidget(new QLabel(i18n("<h3>Protocol:</h3>")));
         protocolSelectionLay->addStretch(-1);
         // Once S/MIME is supported add radio for S/MIME here.
 
         recipientsVLay->addWidget(mSigEncWidget);
         tabWidget->addTab(recipientsWidget, QIcon::fromTheme(QStringLiteral("contact-new-symbolic")),
                           i18n("Recipients"));
 
         mEdit->setPlaceholderText(i18n("Enter a message to encrypt or decrypt..."));
 
         auto fixedFont = QFont(QStringLiteral("Monospace"));
         fixedFont.setStyleHint(QFont::TypeWriter);
         // This does not work well
         // QFontDatabase::systemFont(QFontDatabase::FixedFont);
 
         mEdit->setFont(fixedFont);
         mEdit->setAcceptRichText(false);
         mEdit->setMinimumWidth(QFontMetrics(fixedFont).averageCharWidth() * 70);
 
         if (KeyCache::instance()->pgpOnly() || !Settings{}.cmsEnabled()) {
             mSigEncWidget->setProtocol(GpgME::OpenPGP);
         } else {
             auto grp = new QButtonGroup(q);
             auto mPGPRB = new QRadioButton(i18n("OpenPGP"));
             auto mCMSRB = new QRadioButton(i18n("S/MIME"));
             grp->addButton(mPGPRB);
             grp->addButton(mCMSRB);
 
             KConfigGroup config(KSharedConfig::openConfig(), "Notepad");
             if (config.readEntry("wasCMS", false)) {
                 mCMSRB->setChecked(true);
                 mSigEncWidget->setProtocol(GpgME::CMS);
             } else {
                 mPGPRB->setChecked(true);
                 mSigEncWidget->setProtocol(GpgME::OpenPGP);
             }
 
             protocolSelectionLay->addWidget(mPGPRB);
             protocolSelectionLay->addWidget(mCMSRB);
             connect(mPGPRB, &QRadioButton::toggled, q, [this] (bool value) {
                     if (value) {
                         mSigEncWidget->setProtocol(GpgME::OpenPGP);
                     }
                 });
             connect(mCMSRB, &QRadioButton::toggled, q, [this] (bool value) {
                     if (value) {
                         mSigEncWidget->setProtocol(GpgME::CMS);
                     }
                 });
         }
 
         updateCommitButton();
 
         connect(mEdit, &QTextEdit::textChanged, q, [this] () {
                 updateCommitButton();
             });
 
         connect(mCryptBtn, &QPushButton::clicked, q, [this] () {
                 if (mImportProto != GpgME::UnknownProtocol) {
                     doImport();
                 } else {
                     doEncryptSign();
                 }
             });
 
         connect(mSigEncWidget, &SignEncryptWidget::operationChanged, q, [this] (const QString &) {
                 updateCommitButton();
             });
 
         connect(mDecryptBtn, &QPushButton::clicked, q, [this] () {
                 doDecryptVerify();
             });
 
         connect(mRevertBtn, &QPushButton::clicked, q, [this] () {
                 revert();
             });
     }
 
     void revert()
     {
         mEdit->setPlainText(QString::fromUtf8(mInputData));
         mRevertBtn->setVisible(false);
     }
 
     void updateRecipientsFromResult(const Kleo::Crypto::DecryptVerifyResult &result)
     {
         const auto decResult = result.decryptionResult();
 
         for (const auto &recipient: decResult.recipients()) {
             if (!recipient.keyID()) {
                 continue;
             }
 
             GpgME::Key key;
             if (strlen(recipient.keyID()) < 16) {
                 key = KeyCache::instance()->findByShortKeyID(recipient.keyID());
             } else {
                 key = KeyCache::instance()->findByKeyIDOrFingerprint(recipient.keyID());
             }
 
             if (key.isNull()) {
                 std::vector<std::string> subids;
                 subids.push_back(std::string(recipient.keyID()));
                 for (const auto &subkey: KeyCache::instance()->findSubkeysByKeyID(subids)) {
                     key = subkey.parent();
                     break;
                 }
             }
 
             if (key.isNull()) {
                 qCDebug(KLEOPATRA_LOG) << "Unknown key" << recipient.keyID();
                 mSigEncWidget->addUnknownRecipient(recipient.keyID());
                 continue;
             }
 
             bool keyFound = false;
             for (const auto &existingKey: mSigEncWidget->recipients()) {
                 if (existingKey.primaryFingerprint() && key.primaryFingerprint() &&
                     !strcmp (existingKey.primaryFingerprint(), key.primaryFingerprint())) {
                     keyFound = true;
                     break;
                 }
             }
             if (!keyFound) {
                 mSigEncWidget->addRecipient(key);
             }
         }
     }
 
     void cryptDone(const std::shared_ptr<const Kleo::Crypto::Task::Result> &result)
     {
         updateCommitButton();
         mProgressBar->setVisible(false);
         mProgressLabel->setVisible(false);
 
         mLastResultWidget = new ResultItemWidget(result);
         mLastResultWidget->showCloseButton(true);
         mStatusLay->addWidget(mLastResultWidget);
 
         connect(mLastResultWidget, &ResultItemWidget::closeButtonClicked, q, [this] () {
             removeLastResultItem();
         });
 
         // Check result protocol
         if (mPGPRB) {
             auto proto = getProtocol(result);
             if (proto == GpgME::UnknownProtocol) {
                 proto = mPGPRB->isChecked() ? GpgME::OpenPGP : GpgME::CMS;
             } else if (proto == GpgME::OpenPGP) {
                 mPGPRB->setChecked(true);
             } else if (proto == GpgME::CMS) {
                 mCMSRB->setChecked(true);
             }
 
             KConfigGroup config(KSharedConfig::openConfig(), "Notepad");
             config.writeEntry("wasCMS", proto == GpgME::CMS);
         }
 
         if (result->errorCode()) {
             if (!result->errorString().isEmpty()) {
                 KMessageBox::error(q,
                         result->errorString(),
                         i18nc("@title", "Error in crypto action"));
             }
             return;
         }
         mEdit->setPlainText(QString::fromUtf8(mOutputData));
         mOutputData.clear();
         mRevertBtn->setVisible(true);
         mDecryptBtn->setEnabled(true);
 
         const auto decryptVerifyResult = dynamic_cast<const Kleo::Crypto::DecryptVerifyResult*>(result.get());
         if (decryptVerifyResult) {
             updateRecipientsFromResult(*decryptVerifyResult);
         }
     }
 
     void doDecryptVerify()
     {
         doCryptoCommon();
         mSigEncWidget->clearAddedRecipients();
         mProgressLabel->setText(i18n("Decrypt / Verify") + QStringLiteral("..."));
         auto input = Input::createFromByteArray(&mInputData,  i18n("Notepad"));
         auto output = Output::createFromByteArray(&mOutputData, i18n("Notepad"));
 
         AbstractDecryptVerifyTask *task;
         auto classification = input->classification();
         if (classification & Class::OpaqueSignature ||
             classification & Class::ClearsignedMessage) {
             auto verifyTask = new VerifyOpaqueTask();
             verifyTask->setInput(input);
             verifyTask->setOutput(output);
             task = verifyTask;
         } else {
             auto decTask = new DecryptVerifyTask();
             decTask->setInput(input);
             decTask->setOutput(output);
             task = decTask;
         }
         try {
             task->autodetectProtocolFromInput();
         } catch (const Kleo::Exception &e) {
             KMessageBox::error(q,
                     e.message(),
                     i18nc("@title", "Error in crypto action"));
             updateCommitButton();
             mProgressBar->setVisible(false);
             mProgressLabel->setVisible(false);
             return;
         }
 
         connect (task, &Task::result, q, [this, task] (const std::shared_ptr<const Kleo::Crypto::Task::Result> &result) {
                 qCDebug(KLEOPATRA_LOG) << "Decrypt / Verify done. Err:" << result->errorCode();
                 task->deleteLater();
                 cryptDone(result);
             });
         task->start();
     }
 
     void removeLastResultItem()
     {
         if (mLastResultWidget) {
             mStatusLay->removeWidget(mLastResultWidget);
             delete mLastResultWidget;
             mLastResultWidget = nullptr;
         }
     }
 
     void doCryptoCommon()
     {
         mCryptBtn->setEnabled(false);
         mDecryptBtn->setEnabled(false);
         mProgressBar->setVisible(true);
         mProgressLabel->setVisible(true);
         mInputData = mEdit->toPlainText().toUtf8();
         removeLastResultItem();
     }
 
     void doEncryptSign()
     {
         if (DeVSCompliance::isActive() && !DeVSCompliance::isCompliant()) {
             KMessageBox::sorry(q->topLevelWidget(),
                                xi18nc("@info %1 is a placeholder for the name of a compliance mode. E.g. NATO RESTRICTED compliant or VS-NfD compliant",
                                       "<para>Sorry! You cannot use <application>Kleopatra</application> for signing or encryption "
                                       "because the <application>GnuPG</application> system used by <application>Kleopatra</application> is not %1.</para>",
                                       DeVSCompliance::name(true)));
             return;
         }
 
         doCryptoCommon();
         mProgressLabel->setText(mSigEncWidget->currentOp() + QStringLiteral("..."));
         auto input = Input::createFromByteArray(&mInputData,  i18n("Notepad"));
         auto output = Output::createFromByteArray(&mOutputData, i18n("Notepad"));
 
         auto task = new SignEncryptTask();
         task->setInput(input);
         task->setOutput(output);
 
         const auto sigKey = mSigEncWidget->signKey();
 
         const std::vector<GpgME::Key> recipients = mSigEncWidget->recipients();
         const bool encrypt = mSigEncWidget->encryptSymmetric() || !recipients.empty();
         const bool sign = !sigKey.isNull();
 
         if (sign) {
             task->setSign(true);
             std::vector<GpgME::Key> signVector;
             signVector.push_back(sigKey);
             task->setSigners(signVector);
         } else {
             task->setSign(false);
         }
         task->setEncrypt(encrypt);
         task->setRecipients(recipients);
         task->setEncryptSymmetric(mSigEncWidget->encryptSymmetric());
         task->setAsciiArmor(true);
 
         if (sign && !encrypt && sigKey.protocol() == GpgME::OpenPGP) {
             task->setClearsign(true);
         }
 
         connect (task, &Task::result, q, [this, task] (const std::shared_ptr<const Kleo::Crypto::Task::Result> &result) {
                 qCDebug(KLEOPATRA_LOG) << "Encrypt / Sign done. Err:" << result->errorCode();
                 task->deleteLater();
                 cryptDone(result);
             });
         task->start();
     }
 
     void doImport()
     {
         doCryptoCommon();
         mProgressLabel->setText(i18n("Importing..."));
         auto cmd = new Kleo::ImportCertificateFromDataCommand(mInputData, mImportProto);
         connect(cmd, &Kleo::ImportCertificatesCommand::finished, q, [this] () {
                 mCryptBtn->setEnabled(true);
                 mDecryptBtn->setEnabled(true);
                 mProgressBar->setVisible(false);
                 mProgressLabel->setVisible(false);
 
                 updateCommitButton();
                 mRevertBtn->setVisible(true);
                 mEdit->setPlainText(QString());
             });
         cmd->start();
     }
 
     void checkImportProtocol()
     {
         QGpgME::QByteArrayDataProvider dp(mEdit->toPlainText().toUtf8());
         GpgME::Data data(&dp);
         auto type = data.type();
         if (type == GpgME::Data::PGPKey) {
             mImportProto = GpgME::OpenPGP;
         } else if (type == GpgME::Data::X509Cert ||
                    type == GpgME::Data::PKCS12) {
             mImportProto = GpgME::CMS;
         } else {
             mImportProto = GpgME::UnknownProtocol;
         }
     }
 
     void updateCommitButton()
     {
         mAdditionalInfoLabel->setVisible(false);
 
         checkImportProtocol();
 
         if (mImportProto != GpgME::UnknownProtocol) {
             mCryptBtn->setText(i18nc("1 is an operation to apply to the notepad. "
                                      "Like Sign/Encrypt or just Encrypt.", "%1 Notepad",
                                      i18n("Import")));
             mCryptBtn->setEnabled(true);
             return;
         }
 
         if (!mSigEncWidget->currentOp().isEmpty()) {
             mCryptBtn->setEnabled(true);
             mCryptBtn->setText(i18nc("1 is an operation to apply to the notepad. "
                                      "Like Sign/Encrypt or just Encrypt.", "%1 Notepad",
                                      mSigEncWidget->currentOp()));
         } else {
             mCryptBtn->setText(i18n("Sign / Encrypt Notepad"));
             mCryptBtn->setEnabled(false);
         }
 
         if (DeVSCompliance::isActive()) {
             const bool de_vs = DeVSCompliance::isCompliant() && mSigEncWidget->isDeVsAndValid();
-            mCryptBtn->setIcon(QIcon::fromTheme(de_vs
-                        ? QStringLiteral("security-high")
-                        : QStringLiteral("security-medium")));
-            if (!SystemInfo::isHighContrastModeActive()) {
-                mCryptBtn->setStyleSheet(QStringLiteral("QPushButton { background-color: %1; }").arg(de_vs
-                            ? KColorScheme(QPalette::Active, KColorScheme::View).background(KColorScheme::PositiveBackground).color().name()
-                            : KColorScheme(QPalette::Active, KColorScheme::View).background(KColorScheme::NegativeBackground).color().name()));
-            }
+            DeVSCompliance::decorate(mCryptBtn, de_vs);
             mAdditionalInfoLabel->setText(de_vs
                     ? i18nc("%1 is a placeholder for the name of a compliance mode. E.g. NATO RESTRICTED compliant or VS-NfD compliant",
                         "%1 communication possible.", DeVSCompliance::name(true))
                     : i18nc("%1 is a placeholder for the name of a compliance mode. E.g. NATO RESTRICTED compliant or VS-NfD compliant",
                         "%1 communication not possible.", DeVSCompliance::name(true)));
             mAdditionalInfoLabel->setVisible(true);
             if (!DeVSCompliance::isCompliant()) {
                 mCryptBtn->setEnabled(false);
             }
             mMessageWidget->setVisible(!DeVSCompliance::isCompliant());
         }
     }
 
 private:
     PadWidget *const q;
     QTextEdit *mEdit;
     QPushButton *mCryptBtn;
     QPushButton *mDecryptBtn;
     QPushButton *mRevertBtn;
     KMessageWidget *mMessageWidget;
     QLabel *mAdditionalInfoLabel;
     QByteArray mInputData;
     QByteArray mOutputData;
     SignEncryptWidget *mSigEncWidget;
     QProgressBar *mProgressBar;
     QLabel *mProgressLabel;
     QVBoxLayout *mStatusLay;
     ResultItemWidget *mLastResultWidget;
     QList<GpgME::Key> mAutoAddedKeys;
     QRadioButton *mPGPRB;
     QRadioButton *mCMSRB;
     GpgME::Protocol mImportProto;
 };
 
 PadWidget::PadWidget(QWidget *parent):
     QWidget(parent),
     d(new Private(this))
 {
 }
 
 void PadWidget::focusFirstChild(Qt::FocusReason reason)
 {
     d->mEdit->setFocus(reason);
 }